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Percussion Type Drilling Rig Machine

June 17 , 2022

Percussive drilling rigs, also known as percussive drilling, are divided into two methods: drill pipe percussion drilling and wire rope percussion drilling. The wire rope percussion drilling method is generally used in water well construction. It uses a drill bit with a certain weight to periodically impact the bottom of the well within a certain height to break the rock formation. After each impact, the drill bit or the pumping cylinder is driven by the wire rope to rotate at a certain angle, so that the drilling can get regular drilling. circular section. In the construction of water wells, this method is mainly used for the drilling of water wells with weak water-bearing formations and larger diameters, and the drilling effect is better in pebble, gravel layers and dense bedrock layers. For drilling in Quaternary strata, I-shaped drill bits and barrel drill bits are mostly used, and cross-shaped drill bits or round drill bits are mostly used in bedrock layers. Although percussion drilling is slow and inefficient, it has the advantages of simple equipment, large diameter of wells and low cost, which can better meet the construction needs of larger diameter shallow machined wells in water-deficient areas. Percussion drilling is...

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Classification of water well drilling rigs(III)

June 11 , 2022

The purpose of water well construction is to provide water supply wells, and its value is generally less than that of oil wells or solid deposit drilling. Generally, the investment in equipment is low, and the engineering cost is low. Exploration boreholes are generally underground temporary structures drilled for the purpose of reconnaissance. They are used to obtain geological data and boreholes for testing. The purposes of the two are different and should not be confused.

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Classification of water well drilling rigs(II)

June 02 , 2022

Generally, the machinery that can be used for the drilling of water supply pipe wells is the water well drilling rig. The water supply pipe well is a long-term groundwater intake structure, and it is a well built for water supply. It is different from the general exploration hole and requires a larger diameter, with a specific well structure, well pipe and filter pipe. Except for deep wells and geothermal wells, which require large drilling rigs, small and medium-sized drilling rigs are generally used for water well drilling. In addition, the well construction period is short, the fluidity is large, and the relocation is frequent, and the drilling equipment required should not be too bulky.

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Why choose DTH Hammer drilling way for water well drilling work

June 01 , 2022

The birth and development of the pneumatic water well drilling rig is a large revolution in drilling technology. It changed the traditional way of cutting and grinding rock, breaking the rock into volume, greatly improving drilling efficiency and adaptability to hard and complex formations. Its remarkable technology Economic benefits are regarded as one of the symbols of modern drilling technology and measurement of drilling technology, and are valued by the drilling industry at home and abroad. Pneumatic DTH hammer drilling mainly begins with drilling blasting holes, well bedrock holes and geological exploration holes. In order to expand its application scope, domestic and foreign researchers, such as working performance of the DTH hammer, make it suitable for various projects , different application requirements.

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Classification of water well drilling rigs　(I)

May 28 , 2022

Classification of water well drilling rigs　(I) Water wells are generally divided into three categories: water supply tube wells, large wells and radiation wells. Generally, the well is deeper and the diameter is relatively large, and the well composed of wellhead, well wall tube, aquifer section and necessary filters is called tube well; wells with a diameter greater than 2m are collectively called large wells; A large diameter catchment well The water intake system composed of several to dozens of horizontal radiant tubes with a certain length of multi-layer and several to dozens of horizontal radiant tubes driven into different directions from the water collection well is called a radiant well.

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Methods of Hydrological Logging 3

May 20 , 2022

Hydrological logging There are many kinds of geophysical logging methods. Commonly used hydrological logging methods mainly include natural electric field method, resistivity method, natural gamma method, and acoustic wave method. Both the natural electric field method and the resistivity method belong to electrical logging, which is commonly known as electrical logging. The drilling rig is mainly used to determine the location and thickness of the aquifer, divide the interface between salty and fresh water, and estimate the The water quality and quantity after the well is completed. When exploiting deep fresh water, electrical logging can provide a reliable technical basis for the design of the well pipe structure and the determination of the sealing depth of the salt water layer.

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